<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no"/>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title>Hello, World</title>
    <style type="text/css">
        html {
            height: 100%
        }

        body {
            height: 100%;
            margin: 0px;
            padding: 0px
        }

        #container {
            height: 100%
        }

        #demo_panel {
            position: absolute;
            width: 100%;
            padding: 15px;
            left: 0;
            top: 0;
            background: #fff;
        }
    </style>
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.5&ak=ttwaH5NADcpIkNc7wfMpKBpK"></script>
</head>

<body>
<div id="container"></div>
<div id="demo_panel">
    <button id="demo_btn_clear_a">清除LayerA</button>
    <button id="demo_btn_clear_b">清除LayerB</button>
</div>
<script src="../lib/bmap.js"></script>
<script src="demo.js"></script>
<script type="text/javascript">

</script>
</body>
</html>